/*
 * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
 *
 * This program is free software: you can use, redistribute, and/or modify
 * it under the terms of the GNU Affero General Public License, version 3
 * or later ("AGPL"), as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef _TD_UTIL_SCALABLEBF_H_
#define _TD_UTIL_SCALABLEBF_H_

#include "tbloomfilter.h"

#ifdef __cplusplus
extern "C" {
#endif

typedef struct SScalableBf {
  SArray*    bfArray;  // array of bloom filters
  uint32_t   growth;
  uint64_t   numBits;
  uint32_t   maxBloomFilters;
  int8_t     status;
  _hash_fn_t hashFn1;
  _hash_fn_t hashFn2;
} SScalableBf;

int32_t tScalableBfInit(uint64_t expectedEntries, double errorRate, SScalableBf** ppSBf);
int32_t tScalableBfPutNoCheck(SScalableBf* pSBf, const void* keyBuf, uint32_t len);
int32_t tScalableBfPut(SScalableBf* pSBf, const void* keyBuf, uint32_t len, int32_t* winRes);
int32_t tScalableBfNoContain(const SScalableBf* pSBf, const void* keyBuf, uint32_t len);
void    tScalableBfDestroy(SScalableBf* pSBf);
int32_t tScalableBfEncode(const SScalableBf* pSBf, SEncoder* pEncoder);
int32_t tScalableBfDecode(SDecoder* pDecoder, SScalableBf** ppSBf);

#ifdef __cplusplus
}
#endif

#endif /*_TD_UTIL_SCALABLEBF_H_*/